different between sunlight vs heliograph

English

Etymology

From Middle English sonnelight, sunneliht, from Old English sunnan l?oht (“sunlight”), equivalent to sun +? light. Cognate with Dutch zonlicht (“sunlight”), German Low German Sünnenlücht (“sunlight”), German Sonnenlicht (“sunlight”).

Pronunciation

• IPA^(key): /?s?n?la?t/
• Hyphenation: sun?light

Noun

sunlight (countable and uncountable, plural sunlights)

1. All the electromagnetic radiation given off by the Sun, especially that in the visible spectrum that bathes the Earth.

2. (figuratively) Brightness, hope; a positive outlook.
3. Synonym of sunrise.

Synonyms

• (light from the sun): daylight, sun, sunshine
• (brightness): hope, optimism
• (sunrise): break of day, first light, sunup; see also Thesaurus:dawn

Hypernyms

• light

Derived terms

• Port Sunlight
• sunlight is the best disinfectant

Related terms

• sunbeam

Translations

Verb

sunlight (third-person singular simple present sunlights, present participle sunlighting, simple past and past participle sunlighted)

1. To work on the side (at a secondary job) during the daytime.

References

• sunlight on Wikipedia.Wikipedia

Anagrams

• hustling, unlights

English

Etymology

From helio- +? -graph.

Noun

heliograph (plural heliographs)

1. An apparatus for signalling by means of a moveable mirror which reflects flashes of sunlight.
   • 1979, Alasdair Gray, ‘Five Letters From an Eastern Empire’, Canongate 2012 (Every Short Story 1951-2012), p. 93:

     when we stood up at nightfall we saw, in the sunset, the sparkle of the heliograph above cities, on the far side of the horizon.

2. A heliogram.
3. An instrument for measuring the intensity of sunlight.
4. A device for photographing the sun.
5. (obsolete) A photograph.

Derived terms

• heliographer
• heliographic
• heliography

Verb

heliograph (third-person singular simple present heliographs, present participle heliographing, simple past and past participle heliographed)

1. (transitive) To send a message by heliograph.
2. (intransitive) To send a heliograph.
3. (transitive, dated) To photograph by sunlight.

Further reading

• heliograph on Wikipedia.Wikipedia